Hi all. I am having some troubles with DMA timeouts. This is
a preliminary report, I am at work and don't have messages
and such.
I found some, probably related, messages when searching for
"dma timeout", one of the messages pointed to a thread on
linux-kernel (and seemed related to a specific chipset)
The system is a P133 compaq with 2 HD's. Distribution is
debian woody, kernel is 2.4.14. The 2nd HD (hdc) contains the
installion, the 1st HD (hda) is the new HD to which I want
to copy the filesystem.
Moving files on 1 HD is no problem but from hdc to hda gives
dma timeouts after a while. (somthing like cp -a /
/mnt/root where root is a mounted partition from hda) When
is goes wrong the ide drive isn't available anymore. It
seems as if the partition table is gone but it looks like
the kernel ignores /dev/hda.
Anyway, I blaimed xfs for this but when I made the filesystem
ext2 I still get these dma timeouts. Then I read in archive
about broken or soon to be broken HD's I got a little
worried. The 1fst HD is a brand new one. So, final test: I
tarred the whole installation on hdc ftp'ed to another pc,
ftp'ed it backed to hda and untarred. No errors at all. So I
guess it has something to do with accessing two ide channels
at the same time, but I haven't something like this before.
Oke, if anyone has a clue about what is going on please
explain/clearify to this me. If error messages are needed
(and it would explain things better I guess) I won't have
time to make them before tomorrow night)
If you made it so far, thanks for reading.
--
Dirk
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